Second, searching for OLED (the OLED displays) I got lots of matches on words like "controled", "toledo", "tooled", "microled", "knwoledge" (sic), "fooled", "spooled", "cooled", etc.
Yes but it does tell you how close a match it is.
I think it's useful - means you can search for something like 'sureelectronics' and it will come up with results phrased 'sure electronics' or searching for a component, say it was called a 8945, there might be different versions, an 8945DB-R, SM8945 etc and it would show them all which would obviously be what you want in those circumstances.
I don't know how the search is set up but I think it would be tricky to filter different languages. If there's a post on OLEDs in German or something and I don't speak German, google translate normally works pretty well.